User Manual
Table Of Contents
- 1 About this document
- 2 Overview
- 3 Notes
- 4 Functions
- 4.1 Temperature control
- 4.2 Operating modes
- 4.3 Room temperature setpoints
- 4.4 Application overview
- 4.5 Power supply selection for RDG200KN
- 4.6 Additional functions
- 4.7 Control sequences
- 4.7.1 Sequence overview (setting via P001)
- 4.7.2 Application mode
- 4.7.3 2-pipe fan coil unit
- 4.7.4 2-pipe fan coil unit with electric heater
- 4.7.5 2-pipe fan coil unit with radiator or floor heating
- 4.7.6 2-pipe/2-stage heating or cooling
- 4.7.7 4-pipe fan coil unit
- 4.7.8 4-pipe fan coil unit with electric heater
- 4.7.9 Chilled/heated ceiling and radiator applications
- 4.7.10 Compressor applications
- 4.7.11 Applications with external AQR sensor or QMX room operator unit
- 4.7.12 Setpoints and sequences
- 4.8 Control outputs
- 4.9 Fan control
- 4.10 Multifunctional input, digital input
- 4.11 Handling system faults
- 4.12 KNX communications
- 4.13 Communication objects (S-Mode)
- 4.14 Communication objects (LTE-Mode)
- 4.15 Control parameters
- 5 Supported KNX tools
- 6 Connection
- 7 Technical data
- 8 Dimensions
- Index /
Functions
Control sequences
4
A6V11545892_en--_a 61 | 150
In this case, an electric heater is connected directly to outputs Q2 (RDG260KN),
and the current heats up the relay contact. This falsifies the internal temperature
sensor reading. The thermostat compensates the temperature, if the rated power
of the electric heating is entered at P217.
Factory setting P217: 0.0 kW, setting range: 0.0…1.2 kW.
The diagrams below show the control sequence for On/Off control.
Heating mode
(changeover = heating or heating only)
Cooling mode
(changeover = cooling or cooling only)
The diagrams below show the control sequence for modulating control.
Heating mode
(changeover = heating or heating only)
Cooling mode
(changeover = cooling or cooling only)
● The diagrams only show the PI thermostat’s proportional part.
For setting sequence and control outputs, see Application overview [➙ 37],
Sequence overview (setting via P001) [➙ 56] and Control outputs [➙ 78].
Parameter P256 (RDG260KN) sets the heating flow limitation when using a PICV.
See Additional functions [➙ 42].
On/Off control
Control sequence
On/Off output
Modulating control:
3-position, PWM or
DC 0…10 V
Control sequence
modulating control output
Note
Note